Refrigeration & Air-Conditioning Practice Set-3

May 18, 2021

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1. On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process

2. The operating pressure for refrigerating units using R-12 as a refrigerant is

3. In a flooded evaporator refrigerator, an accumulator at suction of compressor is used to

4. The freezing point of sulphur dioxide is

5. The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called

6. A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be

7. The capillary tube, as an expansion device, is used in

8. A bootstrap air cooling system has

9. In a lithium bromide absorption refrigeration system

10. Freon group of refrigerants are


 

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A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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